// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0
/* Copyright 2010-2019 Amazon.com, Inc. or its affiliates. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License").
 * You may not use this file except in compliance with the License.
 * A copy of the License is located at
 *
 *  http://aws.amazon.com/apache2.0
 *
 * or in the "license" file accompanying this file. This file is distributed
 * on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
 * express or implied. See the License for the specific language governing
 * permissions and limitations under the License.
 */
// snippet-start:[ec2.java.create_instance.complete]
package aws.example.ec2;

import com.amazonaws.services.ec2.AmazonEC2;
import com.amazonaws.services.ec2.AmazonEC2ClientBuilder;
import com.amazonaws.services.ec2.model.InstanceType;
import com.amazonaws.services.ec2.model.RunInstancesRequest;
import com.amazonaws.services.ec2.model.RunInstancesResult;
import com.amazonaws.services.ec2.model.Tag;
import com.amazonaws.services.ec2.model.CreateTagsRequest;
import com.amazonaws.services.ec2.model.CreateTagsResult;

/**
 * Creates an EC2 instance
 */
public class CreateInstance {
        public static void main(String[] args) {
                final String USAGE = "To run this example, supply an instance name and AMI image id\n" +
                                "Ex: CreateInstance <instance-name> <ami-image-id>\n";

                if (args.length != 2) {
                        System.out.println(USAGE);
                        System.exit(1);
                }

                String name = args[0];
                String ami_id = args[1];

                final AmazonEC2 ec2 = AmazonEC2ClientBuilder.defaultClient();

                RunInstancesRequest run_request = new RunInstancesRequest()
                                .withImageId(ami_id)
                                .withInstanceType(InstanceType.T1Micro)
                                .withMaxCount(1)
                                .withMinCount(1);

                RunInstancesResult run_response = ec2.runInstances(run_request);

                String reservation_id = run_response.getReservation().getInstances().get(0).getInstanceId();

                Tag tag = new Tag()
                                .withKey("Name")
                                .withValue(name);

                CreateTagsRequest tag_request = new CreateTagsRequest()
                                .withResources(reservation_id)
                                .withTags(tag);

                CreateTagsResult tag_response = ec2.createTags(tag_request);

                System.out.printf(
                                "Successfully started EC2 instance %s based on AMI %s",
                                reservation_id, ami_id);
        }
}
// snippet-end:[ec2.java.create_instance.complete]
